Archived posting to the Leica Users Group, 2011/12/29

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Subject: [Leica] M9 DNG compression
From: john at chiaroscuro.co.nz (John McMaster)
Date: Fri, 30 Dec 2011 09:41:02 +1300
References: <p06240807cb227842f4d7@[192.168.1.101]>
 
I don't think any real difference has been seen at this stage. The main
thing is whether future software can bring more information out of a DNG
file which may be lost if compressed. I shoot uncompressed and deal with the
data ;-)

john

-----Original Message-----


Has anyone ever done a comparison of the 34.6 Mb Leica DNGs to the
compressed versions which are 18 Mb more or less depending on the degree of
detail in the image? While it is not an issue for me, with a mere 1000 to
2000 images per year, terabyte drives being so cheap, It probably is an
issue to the much more prolific professional photographers.

The question is: has anyone ever found an image where this degree of
compression has been seen to matter?

Herb
Replies: Reply from henningw at archiphoto.com (Henning Wulff) ([Leica] M9 DNG compression)
 In reply to: Message from kanner at acm.org (Herbert Kanner) ([Leica] M9 DNG compression)